Self-threading shuttle.



No. 729,141. PATENTED MAY 26, 1903.

J. B.4DAUDELIN.

SELF THREADING SHUTTLE.

APPLICATION FILED NOV. 29, 1901.

N0 MODEL. 2 SHEETS-SHEET 1.

"lllllllllllllll! PATENTED MAY 26, 1908.

J. B.'DAUDELIN. SELF THREADING SHUTTLE.

PPLIOATIOK FILED NOV. 29, 1901 UNrrED STATES Patented May 26 1903.

PATENT OFFICE.

SELF-THREADING SHUTTLE.

SPECIFICATION forming part. of Letters Patent No. 729,141, dated May 26,1903. Application filed November 29, 1901- Serial No. 84,087. (No modehTo all whom it may concern:

Be it known that I, JEAN B. DAUDELIN, a citizen of the United States,residing at Fall River, in the county of Bristol and State ofMassachusetts, have invented certain new and useful Improvements inSelf-Threading Shuttles; and I do hereby declare the following to be afull, clear, and exact description of the invention, such as will enableothers skilled in the art to which it appertains to make and use thesame.

My invention consists in the novel features hereinafter described,reference being had to the accompanying drawings, which illustrate oneform in which I have contemplated embodying my invention and a slightmodification of the same, and said invention is fully disclosed in thefollowing description and claims.

Referring to the said drawings,Figure 1 represents a top plan view of ashuttle embodying myinvention. Fig. 2 is an enlarged view of thethreading end of the shuttle, showing the threading-plate removed. Fig.3 is a side elevation of the threading end of the shuttle, showing thethreading-plate in place. Fig. 4 is a section on line 5 5, Fig. 2. Fig.4 is a detail of the adjustable tension device. Fig. 5 is a section online 45 4, Fig. 2. Fig. 6 is a detail perspective view of thethreadingplate and its securing-post detached. Fig. 7 is a detailperspective view of the deliveryeye and thread-retaining device. Fig. 8is an end view of the same. Figs. 9, 10, and 11 are views similar toFigs. 1, 2, and 3, showing a shuttle provided with a slightly-modifiedform of my invention. Fig. 12 is a sectional view on line 13 13 of Fig.10. Fig. 13 is a sectional view on line 12 12 of Fig. 10. Fig. 14 is aperspective view of the threading-plate. Figs. 15 and 16 are aperspective view and an end view, respectively, of the delivery-eye.

In the form of my invention shown in Figs. 1 to 8, inclusive, Arepresents the shuttlebody provided with the usual spindle-recess Ct, inwhich is located the spindle B. 0 represents the threading-recess,located in the shuttle-body forward of the spindle-recess and beingpreferably substantially circular in horizontal section. D represents aguiding-notch connecting the spindle-recess a with the threading-recessC and having an inclined shoulder d on the side opposite thedelivery-eye to deflect the thread downward into said notch. Erepresents a metallic bushing or-liniug inserted in the delivery-eye onthe shuttle. This bushing consists, preferably, of a piece of sheetmetal bent into nearly cylindrical form, leaving a slit 6,

through which the thread may enter. Frepresents the vertically-disposedthreading-slit extending from the upper face of the shuttlebody to andcommunicating with the slit e in the delivery-eye. At its outer end thebushing is provided with a thread-retaining device consisting of avertically-disposed rod G, inserted in the shuttle-body in rear of thethreading-slit F and extending across the end of the delivery-eye on theside adjacent to its slit 6, so as to prevent the thread fromaccidentally working out through slit e. The rod G may pass through ahole in the bottom of the bushing, as shown in Figs 7 and 8, or may passoutside of the end of the same, as shown in Figs. 15 and 16, the lowerend extending into the shuttle-body. In either case a space is leftbetween the upper edge of the bushing and the bar to permit the threadto pass from the opening in the bush to the other side of the bar, sothatthe rod G serves the double purpose of a thread-retaining device anda means for securing the bushing from working out of the shuttle-body. Hrepresents the threading-plate, which covers the threading-recess and issupported on a horizontal shoulder f, formed on the shuttle-body in rearof the threading-slit F. The plate H is provided on the side oppositethe deliveryeye with an upturned lip h, lying above the inclined face d,to catch the thread and defiect it down into the recess 0. Theshuttlebody is cut away around the edges and beneath the plate H fromthe lip it around to the threading-slit F, as shown, so as to permit thethread to pass under the plate and enter the threading-slit. The plate His held in position by the securing-post I, which has a head (preferablysquared) passing through and countersunk into plate H, the lower end ofthe post I extending downwardly into the body of the shuttle below thethreadingrecess and provided with an aperture 1', through which passes ahorizontal retainingpin K, extending transversely through theshuttle-body. Within the threading-recess O is an adjustable tensiondevice, which is pivotally mounted in the bottom of the recess and saidplate H and. serves also to support the plate adjacent to its center.This tension device consists of a vertical post L, having cylindricalportions at its upper and lower ends to engage apertures in the plate Hand the bottom of the threading-recess, respectively, the intermediateportions of said post being preferably square, buthaving its cornerssmoothed or rounded to prevent breaking or cutting the thread. From thebottom portion of said post L a curved arml extends upwardly andoutwardly, the outer end of said arm being adapted to touch the curvedwall of the threading-recess. The post L will be arranged concentricwith the curved wall of the recess 0, so that said post and arm can beswung around to different positions without removing the arm Z fromcontact with the wall of therecess. By this means the thread may becaused to travel between the arm Z and post L and around post L atdifferent angles, according to the adjustment of the post L, and thelatter will be held in its adjusted position by the triotion of itscylindrical parts with the plate H and the bottom of the recess 0, saidplate being held down firmly onto a shouldered portion of the post L, asshown, by the securingpost I. The curvature of arm lwill also serve todirect the thread when it enters beneath the plate H into the recessbetween said arml and the post L, as will be clearly seen in Fig. 5. Theplate His also provided with a depending flange M adjacent to thethreadingnotch'D, having an inclined edge N adjacent to but not parallelwith the inclined shoulder d, said flange having at its bottom a recessm, formed between two projections mm. The operation of this form of myinvention is as follows: The operator takes hold of the thread as itleaves the end of the spindle and with a quick forward movement,followed by a quick movement transversely of the shuttle, threads it.During the forward movement the thread is caught under the lip h ofplate H and is then carried down between the inclined shoulderdand theinclined face Not the flange M and between the arm Z and post L of thetension device. During the transverse movement the thread is drawnaround under the plate H to the threading-slit F, down said slit andinto the delivery-eye, thus completing the threading movement, theoperation being almost instantaneous. The tension device will beadjusted to give the required tension at the time of assembling theparts of the device. It is to be noted that there are no screws in theconstruction, which are objectionable, as they are apt to split theshuttlebody.

The form of my invention illustrated in Figs. 9 to 16, inclusive, issubstantially identical with that previously described, except that theadjustable tension device is omitted, this form being cheaper inconstruction than that just described. In these figures, A representsthe shuttle-body, a the spindle-recess, B the spindle, O thethreading-recess, D the threading-notch provided with inclined shoulderd, E the delivery-eye provided with slit. e and retaining-rod G, and Fthe threading-slit, all constructed and operating substantially ashereinbefore described. In the threading-recess is placed a verticalpost L, which serves as a tension device and is inserted in the bottomof the threading-recess C. The threading-plate is secured in positionupon the supportingshoulderf by pins f f and is provided with anaperture 7L2 to receive the upper end of the post L. The plate H is alsoprovided with a lip h, depending flange M, having the inclined guidingedge N, and the guiding-recess m between the depending points 17, n, asin the form previously described. The operation of the device inthreading the shuttle is identical with that of the form previouslydescribed, except that there is no adjustable tension device, the threadmerely passing around the post L, which exerts a certain frictionaltension upon the thread.

What I claim, and desire to secure by Letters Patent, is

1. The combination with the shuttle-body provided with a spindle-recess,a threadingrecess forward of the spindle-recess, a threading-notchconnecting said recesses having an inclined shoulder, and a delivery-eyecommunicatin g with the threading-recess,of a threading-plate coveringsaid threading-recess and having a flange extending downward into thesame adjacent to and slightly forward of the threading-notch, saidflange being provided with an inclined guiding edge at one sideoverlapping the edge of the threading-notch provided with the, inclinedshoulder, said flange being also provided with a guidingnotch in itslower edge in line with the threading-notch, substantially as described.

2. The combination with a shuttle-body provided with a spindle-recess, athreading recess forward of the spindle-recess, a threading-notchconnecting said recesses, a delivery-' eye connecting with saidthreading-recess, a bushing for said eye provided with a longitudinalopening, a threading-slit leading to the opening in the said bushing anda bar disposed across the deliveryeye for retaining said bushing andpreventing the escape of the thread from the delivery-eye, substantiallyas described.

3. The combination with a shuttle having a threading-eye of a'bushinglocated in said threading-eye, threading-passages permitting the threadto be drawn into the threading-eye and bushing, and a retaining-barsecuring the bushing in place and preventing the escape of the threadfrom the eye and bushing, substantially as described.

4:. The combination with the shuttle-body provided with aspindle-recess, a threadingrecess forward of the spindle-recess, andconnected therewith by a threading-notch provided with an inclinedshoulder,and having a delivery-eye communicating with thethreading-recess, of a threading-plate covering said threading-recess,and having a portion resting upon a part of the shuttle-body andprovided with a flange extending downward into the threading-recessadjacent to and nearer the side of the shuttle than the side of thethreading-notch provided with the inclined shoulder and a securing-postmounted in said threading-recess, and extending through saidthreading-plate, substantially as described.

5. The combination with a shuttle-body provided with a spindle-recess, athreadingrecess forward of the spindle-recess, a threading-notchconnecting said recesses, an inclined shoulder adjacent to said notch,and a delivery-eye extending from said threadingrecess to the side ofthe shuttle, of a tensionpost disposed vertically in said threading-.recess and a threading-plate covering said recess, and engaging saidpost, said plate having a downwardly-extending flange adjacent to saidthreading-notch provided with an inclined guiding edge overlapping theside of the threading-notch provided with the inclined shoulder, saidflange also having a guiding-recess in its lower edge, in line with thethreadingnotch, substantially as described.

6. The combination with a shuttle-body provided with a spindle-recess, athreadingrecess forward of the spindle-recess, a threading-notchconnecting said recesses, an inclined shoulder adjacent to said notchand a delivery-eye extending from said threadingrecess to the side ofthe shuttle, of a threading-plate covering said threading-recess, andprovided with a flange, having an inclined guiding edge, and aguiding-recess in line with the threading-notch, and an adjustabletension device pivotally mounted in said plate and the bottom of the threading-recess, substantially as described.

7. The combination with a shuttle -body provided with a spindle-recess,a threadingrecess forward of the spindle-recess, a threading-notchconnecting said recesses, an inclined shoulder adjacent to said notch,and a delivery-eye extending from said threading-recess to the side ofthe shuttle, of a threading-plate covering said threading-recess andprovided with a flange, having an inclined guiding edge, and aguiding-recess in line with the threading-notch and an adj ustabletension device comprising a post pivotally mounted in said plate and thebottom of the threading-recess and having an upwardly-extending inclinedarm, adapted to engage a concentric portion of the wall of said recess,substantially as described.

In testimony whereof I affix my signature in the presence of twowitnesses.

JEAN B. DAUDELIN.

Witnesses: I

JOSEPH A. GAUTHIER, CATHERINE A. SHAUGHNESSY.

